Alpine CDE-203BT Owner's Manual page 29

USB device playback
You cannot play items via a USB hub.
This unit cannot recognize USB devices via a
USB hub.
A USB device takes longer to play.
The USB device contains files with a
complicated tree structure.
The sound is intermittent.
The sound may be intermittent at a high-bit-
rate.
DRM (Digital Rights Management) files may
not be playable in some cases.
The audio file cannot be played.
USB devices formatted with file systems other
than FAT16 or FAT32 are unsupported.
* This unit supports FAT16 and FAT32, but some USB
device may not support all of these FAT. For details,
refer to the operating instruction of each USB device or
contact the manufacturer.
Operations for skipping an album, skipping
items (Jump mode), and searching a track by
name cannot be performed.
These operations cannot be performed when
a USB device in Android mode or iPod is
connected.
– Set [USB MODE] to [MSC/MTP] (page 20).
– Remove the iPod.
The USB mode of the device is not set to the
appropriate mode.
– Make sure that the USB mode of the device
is set to MSC/MTP mode.
The sound cannot be output during playback
in Android mode.
While the unit is in ANDROID mode, the sound
outputs only from the Android smartphone.
– Check the status of the audio playback
application on the Android smartphone.
– Playback may not perform properly
depending on the Android smartphone.
BLUETOOTH function
The connecting device cannot detect this unit.
Before the pairing is made, set this unit to
pairing standby mode.
While connected to two BLUETOOTH devices,
this unit cannot be detected from another
device.
– Disconnect either connection and search for
this unit from another device.
When the device pairing is made, set the
BLUETOOTH signal output to on (page 11).
Connection is not possible.
The connection is controlled from one side
(this unit or BLUETOOTH device), but not both.
– Connect to this unit from a BLUETOOTH
device or vice versa.
*
The name of the detected device does not
appear.
Depending on the status of the other device, it
may not be possible to obtain the name.
No ringtone.
Adjust the volume by rotating the control dial
while receiving a call.
Depending on the connecting device, the
ringtone may not be sent properly.
– Set [RINGTONE] to [1] (page 22).
The front speakers are not connected to the
unit.
– Connect the front speakers to the unit. The
ringtone is output only from the front
speakers.
The talker's voice cannot be heard.
The front speakers are not connected to the
unit.
– Connect the front speakers to the unit. The
talker's voice is output only from the front
speakers.
A call partner says that the volume is too low
or high.
Adjust the volume accordingly using Mic gain
adjustment (page 17).
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